Driver Qualification File Checklist
Where the query records belong.
OpenUpdated 8 min read
Part of Driver Files & Medical
A full query before a driver performs a safety-sensitive function, and at least 1 query per year for every driver after that. The annual one may be a limited query if the driver has given consent.

One thing: whether a driver is prohibited from performing safety-sensitive functions. The records behind that answer are verified positive tests, adulterated or substituted results, an alcohol confirmation at 0.04 or above, a refusal to test, and an employer's report of actual knowledge of on-duty use.
It holds no negatives, no medical information and no opinions. That narrowness is why a clean query is fast and why a hit is unambiguous. Keeping the yearly query on schedule for every driver is one of the jobs a carrier hands to a service or software — the options are weighed in DOT compliance software vs a service vs DIY.
| Query | Consent | Returns | Used for |
|---|---|---|---|
| Full | Specific, in the Clearinghouse | The detailed record | Pre-employment; any hit on a limited query |
| Limited | General, kept by the employer | Whether information exists | The annual check |
A limited query that comes back clean ends the matter for the year. A limited query that says information exists starts a 24-hour clock: the carrier must run a full query within 24 hours, and until it does, the driver may not perform safety-sensitive functions.

The two consents work differently and carriers mix them up constantly. Specific consent for a full query is given by the driver inside the Clearinghouse itself — the carrier cannot collect it on paper. General consent for limited queries is collected by the employer, on paper or electronically, and the employer keeps it for three years.
A driver who never registers with the Clearinghouse cannot give specific consent, and a pre-employment query cannot be completed. That is the most common reason a start date slips — and it is entirely fixable by asking the driver to register the day the offer goes out.
The requirement is at least 1 query per driver per year, which means each driver needs one inside every rolling twelve months — not one per calendar year with a fourteen-month gap in the middle. Carriers that run all queries on 2 January discover the gap two years later.

Where the query records belong.
OpenThe audit that asks whether your queries were run.
OpenThe programme that feeds the Clearinghouse.
The rest of what a carrier keeps on each driver.
Which test results reach the Clearinghouse and which never do.